The F1 2021 rulebook is still under heavy scrutiny and its publication has been delayed until October. But what do we know so far about F1 2021"
F1 2021 concepts. CREDIT: Formula 1

F1’s overtaking problem
Is there anything more exciting than when a driver straps on some fresh tyres and starts to hunt down their next opponent" Yet, when they get to within a few seconds of the car infront, they seem to switch to cruise control, never getting close enough to overtake. But why"
This ?cruise control? affect is a result of the hot, turbulent, mushroom-shaped wake coming off the car infront, as shown in the videos below. ?Tyres create a lot of aerodynamic chaos behind them, they generate a nasty wake of low energy chaotic air and if you allow that to fall on your own car then it damages its ability to generate downforce,? highlights James Allison, Technical Director at Mercedes. ?So, every year since 2009 we?ve been developing techniques to take the wake of this tyre and throw it away from the car, as far away as we can. The main agents of throwing that wake outboard is the front wing, front brake ducts and the bargeboards behind. Sadly, if this airflow doesn?t fall on your own car, it winds up on the car behind you and makes it much harder for that car to then follow.?
https://www.racecar-engineering.com/wp-content/uploads/2017/09/F1-2021-turbuelnt-wake-2018_FINAL.mp4
CREDIT: Simscale

Effectively, when air flows over an...